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Federal authorities arrested a well-liked D.C. pediatrician at his home in southeast D.C. on charges of possession of child pornography, News4's Pat Collins reports. (Published Wednesday, May 8, 2013)

Updated at 1:30 AM EST on Thursday, May 9, 2013

A Washington, D.C., pediatrician was charged Wednesday with possession of child pornography.

Robert Paul Dickey, 73, runs his office out of his home on 38th Street SE, near the Maryland border. He had been scheduled to see about 20 patients Wednesday when authorities arrived to search his home and office.

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"Officers observed that the defendant had been viewing a website with child pornography and child erotica on the desktop computer when they entered the office," according to the charging documents.

Authorities seized multiple electronic devices from Dickey's home and office, including a desktop computer and an additional hard drive that contained images of child pornography and child erotica.

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The images depicted naked children, and both girls and boys being forced into sex acts.

Dickey admitted to law enforcement agents that he has visited child pornography sites, downloaded child pornography and stored it on an external hard drive, the police documents say.

The investigation began in April when Microsoft alerted the National Center for Missing and Exploited Children that someone with a Microsoft Outlook email address and the user name Robert Dickey uploaded about 14 images of child pornography, according to authorities.

Two children reside in Dickey's home. Documents say they are Dickey's grandsons, an infant and a boy around nine years old.